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Thickness-dependent structural and magnetic properties of Fe4N thin films

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2022

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Tayal, Akhil
Gupta, Pooja
Chakravarty, Sujay
Gupta, Mukul

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Journal of Magnetism and Magnetic Materials. Elsevier. 2022, 563, 169999. ISSN 0304-8853. eISSN 1873-4766. Verfügbar unter: doi: 10.1016/j.jmmm.2022.169999

Zusammenfassung

In this work, a series of Fe4N thin films with thickness = 10, 30, 60, and 120 nm were deposited using a reactive dc magnetron sputtering and studied for their structural and the magnetic properties. X-ray diffraction measurements confirmed the formation of a single-phase Fe4N and the grain size was found to increase up to t = 60 nm. Magnetization measurements were carried out using the bulk magnetization as well as element-specific magnetic circular dichroism. It was found that the saturation magnetization (M8) maximizes at t = 30 nm. To correlate the observed variation in the M8, we studied the local structure using near edge and extended X-ray absorption fine structure analysis. The effect of local structure and interatomic distances on the magnetic properties of Fe4N films have been explored and discussed.

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Fachgebiet (DDC)
530 Physik

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Transition metal nitrides, Saturation magnetization, XANES, XMCD, Fe4N thin films

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ISO 690SEEMA, Seema, Akhil TAYAL, Pooja GUPTA, Sujay CHAKRAVARTY, Mukul GUPTA, 2022. Thickness-dependent structural and magnetic properties of Fe4N thin films. In: Journal of Magnetism and Magnetic Materials. Elsevier. 2022, 563, 169999. ISSN 0304-8853. eISSN 1873-4766. Verfügbar unter: doi: 10.1016/j.jmmm.2022.169999
BibTex
@article{Seema2022-12Thick-71774,
  year={2022},
  doi={10.1016/j.jmmm.2022.169999},
  title={Thickness-dependent structural and magnetic properties of Fe<sub>4</sub>N thin films},
  volume={563},
  issn={0304-8853},
  journal={Journal of Magnetism and Magnetic Materials},
  author={Seema, Seema and Tayal, Akhil and Gupta, Pooja and Chakravarty, Sujay and Gupta, Mukul},
  note={Article Number: 169999}
}
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